David Hsu
@davidhsucano.bsky.social
Ph.D. Candidate & Research Assistant at Florida State University | Tropical Climatology | Tropical Dynamics 🌧️ (he/him/his)
Reposted by David Hsu
🌊 The ocean absorbs >90% of Earth’s excess heat, and our ability to track it depends on a fragile global network of floats, ships and sensors.
New research warns that cuts to the Global Ocean Observing System could make climate signals indistinguishable from noise.
www.nature.com/articles/s41...
New research warns that cuts to the Global Ocean Observing System could make climate signals indistinguishable from noise.
www.nature.com/articles/s41...
Critical dependence of global ocean heat monitoring on the ocean observing system - Nature Climate Change
International collaboration has facilitated a global ocean observing system, providing data to measure ocean heat content at a resolution that enables the tracking of climate change. This study looks ...
www.nature.com
May 23, 2026 at 8:04 PM
🌊 The ocean absorbs >90% of Earth’s excess heat, and our ability to track it depends on a fragile global network of floats, ships and sensors.
New research warns that cuts to the Global Ocean Observing System could make climate signals indistinguishable from noise.
www.nature.com/articles/s41...
New research warns that cuts to the Global Ocean Observing System could make climate signals indistinguishable from noise.
www.nature.com/articles/s41...
Reposted by David Hsu
As @drkatemarvel.bsky.social explains here, when the US admin ended the NASA climate modeling group's office lease, they were kicked out of their building -- and "have been kind of couch surfing at various NYC universities and libraries" since then. Unbelievable.
Read more here:
Read more here:
A top climate scientist just resigned from NASA. Here's why
Climate scientist Kate Marvel talked to Scientific American about her decision to leave NASA amid federal government turmoil and funding challenges
www.scientificamerican.com
March 26, 2026 at 5:42 PM
As @drkatemarvel.bsky.social explains here, when the US admin ended the NASA climate modeling group's office lease, they were kicked out of their building -- and "have been kind of couch surfing at various NYC universities and libraries" since then. Unbelievable.
Read more here:
Read more here:
Reposted by David Hsu
China could be the world’s biggest public funder of science within two years. Forecast by science-policy researchers raises questions about where the epicentre of global research will shift to in the coming decade. www.nature.com/articles/d41...
China could be the world’s biggest public funder of science within two years
Forecast by science-policy researchers raises questions about where the epicentre of global research will shift to in the coming decade.
www.nature.com
March 19, 2026 at 3:48 PM
China could be the world’s biggest public funder of science within two years. Forecast by science-policy researchers raises questions about where the epicentre of global research will shift to in the coming decade. www.nature.com/articles/d41...
Reposted by David Hsu
“This is a shocking betrayal that tears out the core of American scientific prominence," said Pamitha Weerasinghe of @usacompetes.bsky.social.
To help #SaveNCAR, read our update below & visit this page, where you can find email & call scripts to share with your reps.
agu.quorum.us/campaign/151...
“This is a shocking betrayal that tears out the core of American scientific prominence," said Pamitha Weerasinghe of @usacompetes.bsky.social.
To help #SaveNCAR, read our update below & visit this page, where you can find email & call scripts to share with your reps.
agu.quorum.us/campaign/151...
December 18, 2025 at 3:37 PM
“This is a shocking betrayal that tears out the core of American scientific prominence," said Pamitha Weerasinghe of @usacompetes.bsky.social.
To help #SaveNCAR, read our update below & visit this page, where you can find email & call scripts to share with your reps.
agu.quorum.us/campaign/151...
“This is a shocking betrayal that tears out the core of American scientific prominence," said Pamitha Weerasinghe of @usacompetes.bsky.social.
To help #SaveNCAR, read our update below & visit this page, where you can find email & call scripts to share with your reps.
agu.quorum.us/campaign/151...
Reposted by David Hsu
The Trump Administration's plan to dismantle the @ncar-ucar.bsky.social is senseless & dangerous.
It would weaken weather forecasting, climate research, & the science that keeps people safe.
We urge that this plan be abandoned.
Call Congress to #SaveNCAR today. buff.ly/7ka1BQA
It would weaken weather forecasting, climate research, & the science that keeps people safe.
We urge that this plan be abandoned.
Call Congress to #SaveNCAR today. buff.ly/7ka1BQA
Save NCAR from being dismantled today!
The Trump Administration has vowed to dissolve the center that provides critical extreme weather and climate data for our nation.
buff.ly
December 17, 2025 at 7:44 PM
The Trump Administration's plan to dismantle the @ncar-ucar.bsky.social is senseless & dangerous.
It would weaken weather forecasting, climate research, & the science that keeps people safe.
We urge that this plan be abandoned.
Call Congress to #SaveNCAR today. buff.ly/7ka1BQA
It would weaken weather forecasting, climate research, & the science that keeps people safe.
We urge that this plan be abandoned.
Call Congress to #SaveNCAR today. buff.ly/7ka1BQA
Reposted by David Hsu
Interested in tropical (paleo)hydroclimate dynamics, water isotopes, and data-model comparison? Going to #AGU25? My supervisor, Alyssa Atwood, is giving an invited talk on our research into the 8.2 ka Event on Thurs., 18 Dec. between 11:40-11:50 CT! 🌊🪨🧪👩🏻💻
agu.confex.com/agu/agu25/me...
agu.confex.com/agu/agu25/me...
a picture of a waterfall with the words welcome to the amazon hope you brought a raincoat below it
ALT: a picture of a waterfall with the words welcome to the amazon hope you brought a raincoat below it
media.tenor.com
December 12, 2025 at 11:11 PM
Interested in tropical (paleo)hydroclimate dynamics, water isotopes, and data-model comparison? Going to #AGU25? My supervisor, Alyssa Atwood, is giving an invited talk on our research into the 8.2 ka Event on Thurs., 18 Dec. between 11:40-11:50 CT! 🌊🪨🧪👩🏻💻
agu.confex.com/agu/agu25/me...
agu.confex.com/agu/agu25/me...
Reposted by David Hsu
“This Is What Fascists Do”: Trump Labels Antifa a Terrorist Org in His War on Dissent https://www.democracynow.org/2025/9/24/will_potter_civil_liberties_crackdown_antifa
September 24, 2025 at 4:21 PM
“This Is What Fascists Do”: Trump Labels Antifa a Terrorist Org in His War on Dissent https://www.democracynow.org/2025/9/24/will_potter_civil_liberties_crackdown_antifa
Reposted by David Hsu
A Nature special: Universities made the modern world. Now they must survive it.
go.nature.com/4nTooBX
go.nature.com/4nTooBX
The future of universities: A Nature special report
The world's universities are under intense pressure. Nature examines the threats they face and asks how the sector can and must adapt to survive.
go.nature.com
September 24, 2025 at 5:01 PM
A Nature special: Universities made the modern world. Now they must survive it.
go.nature.com/4nTooBX
go.nature.com/4nTooBX
Reposted by David Hsu
🧑🔬 Don't miss out on the opportunity to discover how scientists like you can use your volunteer expertise for real-world community impact. Join Thriving Earth Exchange, AGU's Community Science initiative, on August 13th at 12PM ET.
⏰ Register here: buff.ly/RecvBYP
⏰ Register here: buff.ly/RecvBYP
July 16, 2025 at 12:33 PM
🧑🔬 Don't miss out on the opportunity to discover how scientists like you can use your volunteer expertise for real-world community impact. Join Thriving Earth Exchange, AGU's Community Science initiative, on August 13th at 12PM ET.
⏰ Register here: buff.ly/RecvBYP
⏰ Register here: buff.ly/RecvBYP
Reposted by David Hsu
🧵Introducing the Trump Action Tracker website!
Today I’m launching www.trumpactiontracker.info - a live, searchable list of authoritarian‑style actions from Trump’s second term (over 740 actions so far). 1/14
Today I’m launching www.trumpactiontracker.info - a live, searchable list of authoritarian‑style actions from Trump’s second term (over 740 actions so far). 1/14
July 21, 2025 at 8:57 PM
🧵Introducing the Trump Action Tracker website!
Today I’m launching www.trumpactiontracker.info - a live, searchable list of authoritarian‑style actions from Trump’s second term (over 740 actions so far). 1/14
Today I’m launching www.trumpactiontracker.info - a live, searchable list of authoritarian‑style actions from Trump’s second term (over 740 actions so far). 1/14
Reposted by David Hsu
I'll be on @democracynow.org tomorrow (Tuesday) morning in the 8am ET hour to discuss extreme heat, the climate crisis, and the assault on climate action by the current administration: www.democracynow.org
Democracy Now!
A daily TV/radio news program, hosted by Amy Goodman and Juan Gonzalez, pioneering the largest community media collaboration in the U.S.
www.democracynow.org
July 1, 2025 at 11:41 AM
Reposted by David Hsu
I've added a new graphic to my climate indicators page, which shows the Oceanic Niño Index (ONI) used for monitoring El Niño/La Niña conditions. I will update it each month at zacklabe.com/climate-chan....
This graphic was thanks to a follower request. Feel free to provide suggestions any time!
This graphic was thanks to a follower request. Feel free to provide suggestions any time!
June 28, 2025 at 8:39 PM
I've added a new graphic to my climate indicators page, which shows the Oceanic Niño Index (ONI) used for monitoring El Niño/La Niña conditions. I will update it each month at zacklabe.com/climate-chan....
This graphic was thanks to a follower request. Feel free to provide suggestions any time!
This graphic was thanks to a follower request. Feel free to provide suggestions any time!
Reposted by David Hsu
When you're living through a hurricane or extreme heat, keeping the lights can be a matter of life or death—but our power grid is woefully unprepared to meet the moment.
How do we get there?
Read our new report:
How do we get there?
Read our new report:
Keeping Everyone's Lights On
The grid today is woefully unprepared to meet our current climate reality.
www.ucs.org
June 29, 2025 at 3:03 PM
When you're living through a hurricane or extreme heat, keeping the lights can be a matter of life or death—but our power grid is woefully unprepared to meet the moment.
How do we get there?
Read our new report:
How do we get there?
Read our new report:
Reposted by David Hsu
🌊
⚒️ Article: North Atlantic Deep Water formation was only moderately weaker than present during the Last Glacial Period, even when freshwater inputs were high
@paddylaser.bsky.social @unil.bsky.social @fpoeppelmeier.bsky.social @unibe.ch
www.nature.com/articles/s41...
@paddylaser.bsky.social @unil.bsky.social @fpoeppelmeier.bsky.social @unibe.ch
www.nature.com/articles/s41...
May 6, 2025 at 3:00 PM
🌊
Reposted by David Hsu
This seems bad. Over time, what people have assumed was the physical limit of human heat tolerance keeps going down. It used to be thought it was a wet-bulb of 35C, now it seems it's more like 32C for resting humans and 27C for people doing minimal physical activity.
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
April 8, 2025 at 8:09 PM
This seems bad. Over time, what people have assumed was the physical limit of human heat tolerance keeps going down. It used to be thought it was a wet-bulb of 35C, now it seems it's more like 32C for resting humans and 27C for people doing minimal physical activity.
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Reposted by David Hsu
🌍 Climate Shifts Could Fuel Extreme Storms 💨🌊
A new study finds the North Atlantic Oscillation may hit record highs, worsening storms and floods in Europe & North America - unless emissions drop.
🔗 doi.org/10.1038/s415...
#ClimateChange #Storms #SciComm 🧪
A new study finds the North Atlantic Oscillation may hit record highs, worsening storms and floods in Europe & North America - unless emissions drop.
🔗 doi.org/10.1038/s415...
#ClimateChange #Storms #SciComm 🧪
Mitigation needed to avoid unprecedented multi-decadal North Atlantic Oscillation magnitude - Nature Climate Change
The North Atlantic Oscillation (NAO) is a key pattern of climate variability for surrounding land areas during winter. Here the authors constrain projections to show that the magnitude of the NAO incr...
doi.org
March 16, 2025 at 5:20 PM
🌍 Climate Shifts Could Fuel Extreme Storms 💨🌊
A new study finds the North Atlantic Oscillation may hit record highs, worsening storms and floods in Europe & North America - unless emissions drop.
🔗 doi.org/10.1038/s415...
#ClimateChange #Storms #SciComm 🧪
A new study finds the North Atlantic Oscillation may hit record highs, worsening storms and floods in Europe & North America - unless emissions drop.
🔗 doi.org/10.1038/s415...
#ClimateChange #Storms #SciComm 🧪
Reposted by David Hsu
Monday ice update - #Arctic sea ice extent is currently the lowest on record (JAXA data)
• about 490,000 km² below the 2010s mean
• about 1,070,000 km² below the 2000s mean
• about 1,450,000 km² below the 1990s mean
• about 1,920,000 km² below the 1980s mean
Plots: zacklabe.com/arctic-sea-i... 🌊🧪⚒️
• about 490,000 km² below the 2010s mean
• about 1,070,000 km² below the 2000s mean
• about 1,450,000 km² below the 1990s mean
• about 1,920,000 km² below the 1980s mean
Plots: zacklabe.com/arctic-sea-i... 🌊🧪⚒️
March 10, 2025 at 2:01 PM
Monday ice update - #Arctic sea ice extent is currently the lowest on record (JAXA data)
• about 490,000 km² below the 2010s mean
• about 1,070,000 km² below the 2000s mean
• about 1,450,000 km² below the 1990s mean
• about 1,920,000 km² below the 1980s mean
Plots: zacklabe.com/arctic-sea-i... 🌊🧪⚒️
• about 490,000 km² below the 2010s mean
• about 1,070,000 km² below the 2000s mean
• about 1,450,000 km² below the 1990s mean
• about 1,920,000 km² below the 1980s mean
Plots: zacklabe.com/arctic-sea-i... 🌊🧪⚒️
Reposted by David Hsu
Concerned for the future of @noaa.gov, let’s give some love to Ferret - developed by PMEL and every modellers secret go to tool for interrogating / analysing netcdf files. It might not be as ‘a la mode’ as python or Julia, but it gets the job done with minimum fuss 🌊 ferret.pmel.noaa.gov/Ferret/
Data Visualization and Analysis | Science Data Integration Group - Ferret Support
Ferret is an interactive computer visualization and analysis environment designed to meet the needs of oceanographers and meteorologists analyzing large and complex gridded data sets. It runs on recent Unix and Mac systems, using X windows for display. PyFerret, introduced in 2012, is a Python module wrapping Ferret. PyFerret is an upgrade to Ferret which runs existing Ferret scripts and includes all Ferret functionality with updated graphics capabilities and additional analysis functions. In addition the pyferret module provides Python functions so Python users can easily take advantage of Ferret's abilities to retrieve, manipulate, visualize, and save data.
ferret.pmel.noaa.gov
March 9, 2025 at 2:58 PM
Concerned for the future of @noaa.gov, let’s give some love to Ferret - developed by PMEL and every modellers secret go to tool for interrogating / analysing netcdf files. It might not be as ‘a la mode’ as python or Julia, but it gets the job done with minimum fuss 🌊 ferret.pmel.noaa.gov/Ferret/
Reposted by David Hsu
Extreme weather can affect the spread of diseases such as malaria, dengue fever, and cholera. New research explores how these climate patterns can interact with population immunity, affecting disease spread years after the climate event itself.
The Interplay of ENSO and Immunity in Infectious Disease Outbreaks - Eos
El Niño and La Niña events can affect the spread of infectious diseases including cholera and dengue fever. The effects of some diseases may persist over several years.
eos.org
March 9, 2025 at 5:10 PM
Extreme weather can affect the spread of diseases such as malaria, dengue fever, and cholera. New research explores how these climate patterns can interact with population immunity, affecting disease spread years after the climate event itself.
Reposted by David Hsu
Update - my monthly climate change dashboard...
Higher resolution graphic available at zacklabe.com/climate-chan...
Higher resolution graphic available at zacklabe.com/climate-chan...
March 9, 2025 at 1:40 PM
Update - my monthly climate change dashboard...
Higher resolution graphic available at zacklabe.com/climate-chan...
Higher resolution graphic available at zacklabe.com/climate-chan...
Reposted by David Hsu
For the lecture on ocean circulation, I show my students this sea surface temperature simulation from NOAA/GFDL, where scientists were fired recently.
You see the major surface current systems, like the Agulhas current, Brazil current, Gulf Stream, Pacific Equatorial current, and Kuroshio current.
You see the major surface current systems, like the Agulhas current, Brazil current, Gulf Stream, Pacific Equatorial current, and Kuroshio current.
March 8, 2025 at 6:03 PM
For the lecture on ocean circulation, I show my students this sea surface temperature simulation from NOAA/GFDL, where scientists were fired recently.
You see the major surface current systems, like the Agulhas current, Brazil current, Gulf Stream, Pacific Equatorial current, and Kuroshio current.
You see the major surface current systems, like the Agulhas current, Brazil current, Gulf Stream, Pacific Equatorial current, and Kuroshio current.
Reposted by David Hsu
Happy to end my paper drought with my first postdoc paper on concurrent megadroughts in the southwestern regions of North and South America. Check it out!👇
journals.ametsoc.org/view/journal... @ametsoc.bsky.social @lamontearth.bsky.social
journals.ametsoc.org/view/journal... @ametsoc.bsky.social @lamontearth.bsky.social
journals.ametsoc.org
January 13, 2025 at 4:09 PM
Happy to end my paper drought with my first postdoc paper on concurrent megadroughts in the southwestern regions of North and South America. Check it out!👇
journals.ametsoc.org/view/journal... @ametsoc.bsky.social @lamontearth.bsky.social
journals.ametsoc.org/view/journal... @ametsoc.bsky.social @lamontearth.bsky.social
Reposted by David Hsu
🌊 Why is the North Atlantic Cooling?
A @natureportfolio.bsky.social study uncovers how a cold patch in the North Atlantic - despite global warming - feeds itself by influencing wind patterns.
Could this reshape our understanding of climate change?
🔗 www.nature.com/articles/s41...
#SciComm 🧪
A @natureportfolio.bsky.social study uncovers how a cold patch in the North Atlantic - despite global warming - feeds itself by influencing wind patterns.
Could this reshape our understanding of climate change?
🔗 www.nature.com/articles/s41...
#SciComm 🧪
A positive atmospheric feedback on the North Atlantic warming hole - Scientific Reports
Scientific Reports - A positive atmospheric feedback on the North Atlantic warming hole
www.nature.com
December 1, 2024 at 9:05 AM
🌊 Why is the North Atlantic Cooling?
A @natureportfolio.bsky.social study uncovers how a cold patch in the North Atlantic - despite global warming - feeds itself by influencing wind patterns.
Could this reshape our understanding of climate change?
🔗 www.nature.com/articles/s41...
#SciComm 🧪
A @natureportfolio.bsky.social study uncovers how a cold patch in the North Atlantic - despite global warming - feeds itself by influencing wind patterns.
Could this reshape our understanding of climate change?
🔗 www.nature.com/articles/s41...
#SciComm 🧪